Hydrogen peroxide disinfection carbon dioxide incubator

Abstract

A hydrogen peroxide disinfection carbon dioxide incubator belongs to the technical field of carbon dioxide incubators. Which comprises an inner container (3), a working cabin (2) arranged outside the inner container (3) and a filter installed on the inner container (3), and is characterized in that a shell (1) is further arranged outside the working cabin (2), a spraying mechanism is arranged in the space between the shell (1) and the working cabin (2) and comprises a gas phase unit and a liquid phase unit, an atomizing nozzle (13) is arranged at the top of the inner container (3), and the atomizing nozzle (13) is communicated with the working cabin (2). The gas phase unit is connected with a gas inlet of the atomizing nozzle (13), and the liquid phase unit is connected with a liquid inlet of the atomizing nozzle (13). According to the hydrogen peroxide disinfection carbon dioxide incubator, the atomizing nozzles are used for atomizing hydrogen peroxide liquid and catalase liquid into uniform granular spray, so that the sterilization effect is guaranteed, decomposition of hydrogen peroxide is facilitated, and potential safety hazards are eliminated.

Description

Technical Field

[0001] A carbon dioxide incubator sterilized by hydrogen peroxide belongs to the technical field of carbon dioxide incubators. Background Art

[0002] Carbon dioxide incubators are widely used in the fields of medical and health and laboratories. It is a device for in vitro culture of cells or tissues by simulating a growth environment similar to that of cells or tissues in vivo inside the incubator. When using a carbon dioxide incubator, it is necessary to regularly sterilize and disinfect it. Traditional carbon dioxide incubators generally adopt traditional sterilization methods such as ultraviolet lamps, moist heat sterilization, and dry heat sterilization techniques. Not only does the sterilization time take longer, but there are also likely to be sterilization dead corners.

[0003] In order to overcome the above problems, hydrogen peroxide has gradually begun to be used as a sterilization means in this field to achieve the sterilization treatment of carbon dioxide incubators. The sterilization treatment of carbon dioxide incubators by hydrogen peroxide includes the following two methods:

[0004] (1) Docking type. Such as the technical solution disclosed in the Chinese utility model patent with the application number 202121713083.0, the application date of July 26, 2021, and the patent name of "An Automatic Sterilization Device for a Mobile Docking Type Carbon Dioxide Incubator". In this technical solution, after docking with the carbon dioxide incubator in a docking manner, the inside of the carbon dioxide incubator is sterilized. Although this method can give full play to the sterilization advantages of hydrogen peroxide itself, its operation process is still relatively cumbersome.

[0005] (2) Online type. Such as the technical solution disclosed in the Chinese utility model patent (application number 202220430079.1) with the patent name of "Carbon Dioxide Incubator Capable of Online Sterilization" submitted by the applicant of this application on March 1, 2022. In this technical solution, a hydrogen peroxide vaporization module is built into the carbon dioxide incubator. After the hydrogen peroxide liquid is vaporized by the hydrogen peroxide vaporization module, it forms a cycle inside the carbon dioxide incubator to achieve the sterilization effect. However, the applicant of this application found during the actual implementation of this solution that in this technical solution, after the hydrogen peroxide is vaporized by the hydrogen peroxide vaporization module and then sent into the incubator, and then a fan is used to form a cycle. However, when the hydrogen peroxide vaporization module vaporizes hydrogen peroxide, the situation of uneven vaporization easily occurs, which not only affects the sterilization effect but also affects the decomposition of hydrogen peroxide by the hydrogen peroxide residue removal module, and there are certain safety hazards. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a hydrogen peroxide disinfection carbon dioxide incubator that atomizes hydrogen peroxide liquid and catalase liquid into uniform granular sprays using an atomizing nozzle, ensuring the sterilization effect while facilitating the decomposition of hydrogen peroxide and eliminating potential safety hazards.

[0007] The technical solution adopted by the utility model to solve its technical problem is as follows: This hydrogen peroxide disinfection carbon dioxide incubator includes an inner tank, with a working chamber arranged outside the inner tank, a filter installed on the inner tank, and a fan arranged on the working chamber to drive the air flow to form a cycle inside and outside the inner tank. Its characteristics are: There is also an outer shell arranged outside the working chamber, and a spraying mechanism is arranged in the space between the outer shell and the working chamber. The spraying mechanism includes a gas phase unit and a liquid phase unit. An atomizing nozzle is arranged at the top of the inner tank. The gas phase unit is connected to the air inlet of the atomizing nozzle, and the liquid phase unit is connected to the liquid inlet of the atomizing nozzle.

[0008] Preferably, the gas phase unit includes a flow regulating valve and a capsule filter connected in sequence. The compressed air source is connected to the air inlet of the atomizing nozzle through the flow regulating valve and the capsule filter in sequence.

[0009] Preferably, the liquid phase unit includes a hydrogen peroxide supply pipe and a catalase supply pipe. The hydrogen peroxide supply pipe and the catalase supply pipe are respectively connected to the inlets of metering pumps, and the outlets of the metering pumps are connected to the liquid inlet of the atomizing nozzle.

[0010] Preferably, a liquid filter is also arranged between the hydrogen peroxide supply pipe and the metering pump.

[0011] Preferably, an orifice plate is also arranged at the top of the working chamber, and an air pipe joint and a liquid pipe joint are installed on the orifice plate. One end of the gas phase unit is connected to the air pipe joint, and the other end of the air pipe joint is connected to the air inlet of the atomizing nozzle; one end of the liquid phase unit is connected to the liquid pipe joint, and the other end of the liquid pipe joint is connected to the liquid inlet of the atomizing nozzle.

[0012] Preferably, a sealing ring is arranged between the orifice plate and the working chamber.

[0013] Preferably, a cabinet door is arranged at the front port of the inner tank, and a sealing strip is arranged around the inner wall of the cabinet door.

[0014] Preferably, heating wires are arranged on the outer wall of the working chamber; heat insulation cotton is arranged between the outer shell and the working chamber.

[0015] Preferably, a conical flow collecting trough is arranged at the bottom of the working chamber, a drain pipe is arranged at the bottom of the flow collecting trough, and a liquid collecting trough is arranged at the outlet of the drain pipe.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] In this hydrogen peroxide disinfection carbon dioxide incubator, the hydrogen peroxide liquid and the catalase liquid are atomized into uniform granular sprays by an atomizing nozzle, which not only ensures the sterilization effect but also facilitates the decomposition of hydrogen peroxide and eliminates potential safety hazards.

[0018] In this hydrogen peroxide disinfection carbon dioxide incubator, the decomposition of hydrogen peroxide is achieved by using catalase. Compared with the traditional method of eliminating hydrogen peroxide by the principle of adsorption with manganese dioxide, it ensures the decomposition effect and eliminates the need to replace manganese dioxide.

[0019] Heating wires are arranged on the outer wall of the working chamber to make the temperature in the cultivation chamber appropriate. Heat insulation cotton is provided between the outer shell and the working chamber to provide heat insulation for the cultivation chamber.

[0020] Since in this hydrogen peroxide disinfection carbon dioxide incubator, it is necessary to send in liquid and gas simultaneously to make the atomizing nozzle work, an orifice plate is provided to facilitate the arrangement of the gas-phase pipeline and the liquid-phase pipeline, and it can also play a sealing role. Description of the Drawings

[0021] Figure 1 It is a cross-sectional view of the internal structure of the hydrogen peroxide disinfection carbon dioxide incubator.

[0022] Figure 2 is Figure 1 the enlarged view of part A in

[0023] Figure 3 It is a schematic diagram of the pipeline connection of the hydrogen peroxide disinfection carbon dioxide incubator.

[0024] Wherein: 1. Outer shell; 2. Working chamber; 3. Inner liner; 4. Partition; 5. Sealing strip; 6. Cabinet door; 7. Circulation hole; 8. Flow collector; 9. Drain pipe; 10. Liquid receiving box; 11. Fan; 12. High-efficiency filter; 13. Atomizing nozzle; 14. Sealing ring; 15. Orifice plate; 16. Air pipe joint; 17. Liquid pipe joint. Detailed Embodiment

[0025] Figures 1 to 3 is the best embodiment of the present utility model. The following further describes the present utility model in conjunction with the attached Figures 1 to 3 drawings.

[0026] As Figure 1As shown in the figure, a carbon dioxide incubator for hydrogen peroxide disinfection (hereinafter referred to as the incubator) includes a housing 1. Inside the housing 1, a working chamber 2 is provided. Inside the working chamber 2, an inner container 3 is provided. An outer sandwich layer is formed at an interval between the housing 1 and the working chamber 2, and an inner sandwich layer is formed at an interval between the working chamber 2 and the inner container 3. The inner cavity of the inner container 3 is the culture chamber of this incubator. Inside the culture chamber, a number of partitions 4 are horizontally arranged. The same as the prior art, heating wires are arranged on the outer wall of the working chamber 2 to make the temperature in the culture chamber reach an appropriate level. Heat-insulating cotton is arranged in the outer sandwich layer to play a heat-insulating effect on the culture chamber.

[0027] At the front port of this incubator, a cabinet door 6 is provided in an openable manner. A sealing strip 5 is arranged around the inner circumference of the cabinet door 6. After the cabinet door 6 is closed, the front port of the inner container 3 is sealed by the cabinet door 6. The bottom of the working chamber 2 is a conical flow collecting trough 8. At the bottom of the flow collecting trough 8, a drain pipe 9 is provided. A liquid collecting trough 8 is arranged on the lower surface of the housing 1. The drain pipe 9 is docked with the liquid collecting trough 8.

[0028] An efficient filter 12 is arranged on the inner wall of the inner container 3. The efficient filter 12 penetrates through the inner wall of the inner container 3. A blower 11 is arranged on the cabin wall of the working chamber 2. The blower 11 is located directly behind the efficient filter 12. A number of circulation holes 7 are opened around the circumference of the front side opening of the inner container 3. The circulation holes 7 penetrate through the shell wall of the inner container 3. When the blower 11 works, the air flow flows in the inner sandwich layer. The air flow flows from the blower 11 to the front side of the inner container 3, then enters the interior of the inner container 3 through the circulation holes 7 on the front side of the inner container 3, and then returns to the inner sandwich layer after being filtered by the efficient filter 12, forming a cycle.

[0029] A through hole is opened at the top of the inner container 3. An atomizing nozzle 13 is installed in the through hole. The outlet of the atomizing nozzle 13 is located inside the inner container 3. Figure 2 Combined with

[0030] the gas inlet and liquid inlet of the atomizing nozzle 13 are located outside the inner container 3. A perforated plate 15 is arranged at the upper part of the working chamber 2. A sealing ring 14 is arranged around the circumference of the perforated plate 15. The sealing between the perforated plate 15 and the surface of the working chamber 2 is achieved through the sealing ring 14.

[0031] Further combined with Figure 3In the outer interlayer of the incubator, a hydrogen peroxide storage tank and a catalase storage tank are arranged, a hydrogen peroxide supply pipe and a catalase supply pipe are respectively installed on the hydrogen peroxide storage tank and the catalase storage tank, and a solenoid valve is respectively installed on the hydrogen peroxide supply pipe and the catalase supply pipe. The catalase supply pipe is connected to the inlet of the metering pump through a liquid filter, and the hydrogen peroxide supply pipe is connected to the inlet of the metering pump through a pipeline at the same time, and the outlet of the metering pump is connected to the liquid pipe joint 17 through the pipeline. The external pipeline for conveying compressed air is connected to one end of the flow regulating valve, and the other end of the flow regulating valve is connected to one end of the solenoid valve through a capsule filter, and the other end of the solenoid valve is connected to the air pipe joint 16.

[0032] The specific working process and working principle are as follows:

[0033] When the incubator is performing incubation operations, the inner tank 3 is kept at a suitable incubation temperature by the heating wire outside the working cabin 2, and is kept warm by the insulation layer. When the incubator needs to be disinfected, the hydrogen peroxide liquid supply pipe is first opened, and the hydrogen peroxide liquid is sent to the atomizing nozzle 13 through the metering pump and the liquid pipe joint 17. At the same time, the external compressed gas is connected to the atomizing nozzle 13 through the flow regulating valve, the capsule filter and the solenoid valve. The hydrogen peroxide liquid is atomized into a uniform granular spray through the atomizing nozzle 13 and sprayed into the inner tank 3. At the same time, the fan 11 is turned on to circulate the hydrogen peroxide spray inside and outside the inner tank 3 to disinfect the entire working cabin 2 and the inner tank 3.

[0034] After the disinfection is completed, the supply of hydrogen peroxide liquid is stopped. At the same time, the catalase liquid supply pipe is opened, and the catalase liquid is sent to the metering pump through the liquid filter, and then sent to the atomizing nozzle 13 through the metering pump and the liquid pipe joint 17. At the same time, the external compressed gas is connected to the atomizing nozzle 13 through the flow regulating valve, the capsule filter and the solenoid valve. The hydrogen peroxide liquid enzyme liquid is atomized into a uniform granular spray through the atomizing nozzle 13 and sprayed into the inner tank 3. At the same time, after the fan 11 is turned on to form a circulation of the catalase spray, the residual hydrogen peroxide is decomposed to avoid pollution to the laboratory environment.

[0035] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A hydrogen peroxide disinfected carbon dioxide incubator, comprising an inner liner (3), a working chamber (2) arranged outside the inner liner (3), a filter installed on the inner liner (3), and a fan (11) arranged on the working chamber (2) for driving airflow to circulate inside and outside the inner liner (3), characterized in that: An outer shell (1) is also provided outside the working chamber (2); a spray mechanism is provided in the space between the outer shell (1) and the working chamber (2); the spray mechanism comprises a gas phase unit and a liquid phase unit; an atomizing nozzle (13) is provided at the top of the inner tank (3); the gas phase unit is connected to the air inlet of the atomizing nozzle (13); and the liquid phase unit is connected to the liquid inlet of the atomizing nozzle (13).

2. The hydrogen peroxide disinfected carbon dioxide incubator according to claim 1, characterized in that: The gas phase unit comprises a flow regulating valve and a capsule filter which are connected in sequence, and the compressed gas source passes through the flow regulating valve and the capsule filter in sequence and is connected to the air inlet of the atomizing nozzle (13).

3. The hydrogen peroxide disinfected carbon dioxide incubator according to claim 1, characterized in that: The liquid phase unit comprises a hydrogen peroxide liquid supply pipe and a catalase liquid supply pipe, the hydrogen peroxide liquid supply pipe and the catalase liquid supply pipe are respectively connected to the inlet of the metering pump, and the outlet of the metering pump is connected to the liquid inlet of the atomizing nozzle (13).

4. The hydrogen peroxide disinfected carbon dioxide incubator according to claim 3, characterized in that: A liquid filter is also arranged between the hydrogen peroxide liquid supply pipe and the metering pump.

5. The hydrogen peroxide disinfected carbon dioxide incubator according to claim 1, characterized in that: A perforated plate (15) is also provided on the top of the working chamber (2), and an air pipe joint (16) and a liquid pipe joint (17) are mounted on the perforated plate (15); the gas phase unit is connected to one end of the air pipe joint (16), and the other end of the air pipe joint (16) is connected to the air inlet of the atomizing nozzle (13); the liquid phase unit is connected to one end of the liquid pipe joint (17), and the other end of the liquid pipe joint (17) is connected to the liquid inlet of the atomizing nozzle (13).

6. The hydrogen peroxide disinfected carbon dioxide incubator according to claim 5, characterized in that: A sealing ring (14) is provided between the orifice plate (15) and the working chamber (2).

7. The hydrogen peroxide disinfected carbon dioxide incubator according to claim 1, characterized in that: A cabinet door (6) is arranged at the front end of the inner container (3), and a sealing strip (5) is arranged around the inner wall of the cabinet door (6).

8. The hydrogen peroxide disinfected carbon dioxide incubator according to claim 1, characterized in that: A heating wire is arranged on the outer wall of the working cabin (2); and a heat-insulating cotton is arranged between the outer shell (1) and the working cabin (2).

9. The hydrogen peroxide disinfected carbon dioxide incubator according to claim 1, characterized in that: A conical collecting trough (8) is arranged at the bottom of the working chamber (2), a drainage pipe (9) is arranged at the bottom of the collecting trough (8), and a liquid collecting trough (8) is arranged at the outlet of the drainage pipe (9).

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